<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>示例13</title>
</head>
<body>
    <script>
        const obj = {
            a:100,
            b:108,
            c:100
        }
        const map = new Map([
            ['a',101],
            ['b',109],
            ['c',102]
        ])
        console.log(obj)
        console.log(map)
        console.log(obj.a)
        console.log(map.get('a'))
    </script>
</body>
</html>